Protective strip for cards



1931- w.-|-|. H-EISINGER 7 PROTECTIVE STRIP FOR CARDS Filed lay I2. 1931 granule v Wilhelm H. Heisiroer Patented Dec. 8, 1931 UNITED STATES.

WILHELII H. HEISING-ER, OF BERLIN-ZEHLENDORF, GERMANY ASSIGNORTO R mI N G' PATENT-OFFICE TON RA1\TD INCL, OF BUFFALO, NEW YORK, A. CORPORATTOIN" PROTECTIVE stun-Ir non cAn'ns Application filed May 12, 1931, Serial No. 536,902, and in Germany October 26, 1926'.

'marginal portion of the card for engagement with complementary portions extending longitudinally of the strip or sheath.

In the drawings showing one embodiment of this invention:

Fig. 1 is a rear face'view of a card having a sheath attached theretofin the manner provided by the present invention.

Fig. 2 is a cross-section taken on line 2-2 of Fig. 1.

A card 1 of any suitable character adapted particularly for use as a record card in v1sible index equipment or the like, has the marginal portion 2 thereof offset longitudinally from end to end thereof at 3 and l respectively to provide longitudinally extending bead portions along the marginal ortion 2 rovidin attachin beads or arts,

b b l A protective sheath or strip 5 formed of celluloid or other transparent material has a fold at 6 arranged at theedge of the card along -marginal' portion 2 with front and rear fold portions 7 and 8 respectively, disposed over the front and rear faces of card 1 to enclose the marginal portion 2.

The fold portion 8 is formed with longitudinally extending offset portions 9 and 10 respectively, to provide complementary beadportions extending longitudinally from end to end of said fold portion 8 to receive the attaching beads 3 and 4 respectively. By this complementary engagement of the beads 3 and 4 in offset portions 9 and 10, the protective sheath 5 is detachably secured to themarginal'portion 2 of the card. The material from which the strip or sheath 5 is formed is suitable resilient material, so formed that the fold portions 7 and 8 normally tend to resiliently engage the front and rear faces of the cardpfor resiliently retaining'ofi'set portions 9 and 10 in connected relation With attaching beads 8 and 4.7

Additional record cards or signals may be inserted between the front fold 7 of the'protective sheath and the face of card 1 .along the marginalportionthereof, and due to the resilient gripping action of the sheath 5;, they will be retained in the pocket formed'be'twee'n.

the front fold 7 and the card.

of connecting the sheath 5 to the card compensates for differences in expansion and;

contraction and. at the same time prevents the sheath from being. accidentally disen- This manner nally extending bead portion, and afolded sheath embracing said marginal portion and.

having a complementary bead portion for detachably retaining said sheath on said card."

2. In combination, a card having a marginal portion formed with an offset portion extending longitudinally thereof to provide an attaching bead, and a folded strip of remarginal portion and having'the fold porsilient transparent material enclosing said tudinally extending bead'formedthereinto receive said attaching bead in complementary relation and'detachably retain said strip on said card.

V In testimony whereof aflix mysignature.

v 'WILHELM H. HEI SIN GEB, 

